Jeff

I think one should output nothing when using parse/tryparse on missing/nothing data. Since it's tryparse is already outputting nothing on invalid strings. Especially since nothing is suppose to represent "does...

@jtcohen6 interesting i thought it would be an easy add. do you have any prior progress on what could be causing failed unit tests?

@jtcohen6 the reason I use `.jinja-sql` is because of this [vscode extension](https://marketplace.visualstudio.com/items?itemName=samuelcolvin.jinjahtml). vscode (and I would assume most decent IDEs) has a file association feature. perhaps a better feature would...

> Polars' categorical type only maps to string categories. What do you think we should have done here? Should we cast to integers? > > > > The error seems...

> We do not support grouping by a column of type list. I think we should improve the error message on that. @ritchie46 what do you think should be the...